JPS62159539A - Data transmission equipment - Google Patents
Data transmission equipmentInfo
- Publication number
- JPS62159539A JPS62159539A JP61001197A JP119786A JPS62159539A JP S62159539 A JPS62159539 A JP S62159539A JP 61001197 A JP61001197 A JP 61001197A JP 119786 A JP119786 A JP 119786A JP S62159539 A JPS62159539 A JP S62159539A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- section
- data
- failure
- retries
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
- Small-Scale Networks (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はデータ伝送システムにおけるデータ伝送装Ｗに
関し、特に送信失敗時の送信再試行に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmission device W in a data transmission system, and particularly relates to transmission retry when transmission fails.
従来、この種のデータ伝送装置では、送信動作に失敗し
た場合の送信再試行回数はデータ伝送装面に固存もので
変更することができなかった。Conventionally, in this type of data transmission device, the number of transmission retries when a transmission operation fails is fixed to the data transmission device and cannot be changed.
上述した従来のデータ伝送装置は、送信再試行回数を変
更することができなかったので、同しデータ伝送ノステ
ムに接続されている複数のデータ伝送装置で障害回復ま
たは障害検出の時間や優先順位等をお互いに変えてシス
テム構成にフレキシビリティを持たせることができない
という欠点がある。In the conventional data transmission device described above, it was not possible to change the number of transmission retries, so the time and priority for failure recovery or failure detection among multiple data transmission devices connected to the same data transmission system could not be changed. The disadvantage is that it is not possible to give flexibility to the system configuration by changing the
本発明の目的は、上述の点に鑑み、データ伝送装置の送
信再試行回数を他装置から設定可能にすることにより、
データ伝送システムのシステム構成にフレキシビリティ
を持たせることができるデータ伝送装置を提供すること
にある。In view of the above-mentioned points, an object of the present invention is to enable setting of the number of transmission retries of a data transmission device from another device.
An object of the present invention is to provide a data transmission device that allows flexibility in the system configuration of a data transmission system.
本発明のデータ伝送装置は、データ処理装置等の上位装
置に接続されて前記上位装置からのデータを共通伝送路
等に送出するデータ伝送装置において、前記上位装置か
らのデータを前記共通伝送路等に送出する送信手段と、
この送信手段による送信が失敗したことを検出する送信
失敗検出手段と、この送信失敗検出手段により検出され
た送信失敗の回数をカウントするカウント手段と、前記
上位装置もしくは前記共通伝送路等に接続される他装置
からの指示により送信再試行回数が書き込まれ送信失敗
検出時に読み出される読み書き可能な記憶手段と、前記
カウント手段のカウント値と前記記憶手段から読み出さ
れた前記送信再試行回数とを比較する比較手段と、ごの
比較手段での比較により前記カウント値が前記送信再試
行回数を越えているときに前記上位装置にその旨を報告
する障害報告手段と、前記比較手段での比較により前記
カウント値が前記送信再試行回数を越えていないときに
再送信を起動する送信再試行手段とを有する。A data transmission device of the present invention is a data transmission device that is connected to a higher-level device such as a data processing device and transmits data from the higher-level device to a common transmission path, etc. a transmission means for transmitting to the
A transmission failure detection means for detecting a failure in transmission by the transmission means; a counting means for counting the number of transmission failures detected by the transmission failure detection means; A read/write storage means in which the number of transmission retries is written in accordance with an instruction from another device and read out when a transmission failure is detected, and a count value of the counting means and the number of transmission retries read from the storage means are compared. a failure reporting means for reporting the count value to the host device when the count value exceeds the number of transmission retries as a result of the comparison by the comparison means; and transmission retry means for starting retransmission when the count value does not exceed the number of transmission retries.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
図は本発明の一実施例のブロック図である。本実施例の
データ伝送装置１は、送信部１１と、送信障害検出部１
２と、カウンタ１３と、記憶部１４と、比較部１５と、
障害部缶部１６と、送信再試行部１７とを含んで構成さ
れている。The figure is a block diagram of one embodiment of the present invention. The data transmission device 1 of this embodiment includes a transmitter 11 and a transmission failure detector 1.
2, a counter 13, a storage section 14, a comparison section 15,
It is configured to include a failure section 16 and a transmission retry section 17.
送信部１１は、さらに受信回路１０１ と、データバッ
ファ１０２と、送信回路１０３と、制御部１０４とを含
んで構成されている。The transmitter 11 further includes a receiver circuit 101 , a data buffer 102 , a transmitter circuit 103 , and a controller 104 .
送信障害検出部１２は、さらに受信回路１１２と、送信
障害検出回路１１１ とを含んで構成されている。The transmission failure detection section 12 further includes a reception circuit 112 and a transmission failure detection circuit 111.
送信部１１の受信回路１０１および障害報告部１６がデ
ータ処理装置等の上位装置に接続され、送信部１１の送
信回路１０３および送信障害検出部１２の受信回路１１
２が共通伝送路に接続されている。共通伝送路には、図
示しない他装置が接続されている。The receiving circuit 101 of the transmitting unit 11 and the failure reporting unit 16 are connected to a higher-level device such as a data processing device, and the transmitting circuit 103 of the transmitting unit 11 and the receiving circuit 11 of the transmission failure detecting unit 12
2 are connected to a common transmission path. Other devices (not shown) are connected to the common transmission path.
次に、このように構成された本実施例のデータ伝送Ｗｌ
の動作について説明する。Next, the data transmission Wl of this embodiment configured as described above will be described.
The operation will be explained.
上位装置または共通伝送路からデータ伝送装置ｌに送信
再試行回数データが送られてくると、送信部１１の受信
回路１０１または送信障害検出部１２の受信回路１１２
がこれを検出して送信再試行回数データを記憶部１４に
格納する。When transmission retry count data is sent from the host device or the common transmission path to the data transmission device l, the reception circuit 101 of the transmission section 11 or the reception circuit 112 of the transmission failure detection section 12
detects this and stores the transmission retry count data in the storage unit 14.
上位装置から送信データがデータ伝送装置１に送られて
くると、まず受信回路１０１がそれを検出して制御部１
０４に通知する。この通知を受けて制御部１０４は、デ
ータバッファ１０２に対して送信データの格納指示を行
い、データバッファ１０２は送信データの格納を行う。When transmission data is sent from the host device to the data transmission device 1, the reception circuit 101 first detects it and sends it to the control unit 1.
Notify on 04. Upon receiving this notification, the control unit 104 instructs the data buffer 102 to store the transmission data, and the data buffer 102 stores the transmission data.
データバッファ１０２への送信データの格納が終わると
、制御部１０４は送信回路１０３に対してデータバッフ
ァ１０２の内容の共通伝送路への送信指示を行うととも
に、送信障害検出部１２の送信障害検出回路１１１の動
作をイネーブルにする。When the storage of the transmission data in the data buffer 102 is completed, the control unit 104 instructs the transmission circuit 103 to transmit the contents of the data buffer 102 to the common transmission path, and also sends the transmission failure detection circuit of the transmission failure detection unit 12 111 operation.
送信回路１０３による送信動作が成功し共通伝送路から
正常応答が返ってくると、送信障害検出部１２の送信障
害検出回路１１１がそれを検出してカウンタ１３をリセ
ットするとともに、送信部１１の制御部１０４に正常応
答が返ってきた旨を通知する。この通知を受けて、制御
部１０４がデータバッファ１０２をリセットする。When the transmission operation by the transmission circuit 103 is successful and a normal response is returned from the common transmission path, the transmission failure detection circuit 111 of the transmission failure detection unit 12 detects it, resets the counter 13, and controls the transmission unit 11. The unit 104 is notified that a normal response has been returned. Upon receiving this notification, the control unit 104 resets the data buffer 102.
共通伝送路から異常応答が返ってくるかまたは応答が返
ってこすに送信動作が失敗すると、送信障害検出部１２
の送信障害検出回路１１１がそれを検出して比較部１５
を起動する。比較部１５は、記憶部１４に記憶されてい
る送信再試行回数データとカウンタ１３の実際の送信再
試行回数カウント値とを比較する。If an abnormal response is returned from the common transmission path or the transmission operation fails even after a response is returned, the transmission failure detection unit 12
The transmission failure detection circuit 111 detects this and the comparison unit 15
Start. The comparison unit 15 compares the transmission retry count data stored in the storage unit 14 and the actual transmission retry count value of the counter 13 .
送信再試行回数カウント値が送信再試行回数デ−タを越
えていなければ、カウンタ１３がカウントアツプされる
とともに送信再試行部１７が送信部１１の制御部１０４
に対して再試行要求を行い、制御部１０４が送信回路１
０３に対してデータバッファ１０２の内容の共通伝送路
への送出指示を行う。If the transmission retry count value does not exceed the transmission retry count data, the counter 13 is incremented and the transmission retry section 17 controls the control section 104 of the transmission section 11.
The control unit 104 makes a retry request to the transmitting circuit 1.
03 to send the contents of the data buffer 102 to the common transmission path.
送信再試行回数カウント値が送信再試行回数データを越
えていれば、障害報告部１６が起動され、上位装置に送
信障害の報告がなされる。If the transmission retry count value exceeds the transmission retry count data, the failure reporting unit 16 is activated and a transmission failure is reported to the host device.
以上説明したように本発明は、データ伝送装置の送信再
試行回数を他装置から設定可能にすることにより、デー
タ伝送システムのシステム構成にフレキンビリティを持
たせることができる効果がある。As described above, the present invention has the effect of making the system configuration of a data transmission system flexible by allowing the number of transmission retries of a data transmission device to be set by another device.
図は本発明の一実施例のデータ伝送装置のブロック図で
ある。
図において、
■・・・データ伝送装置、
１１ ・・送信部、
１２・・・送信障害検出部、
１３・・・カウンタ、
１４・・・記憶部、
１５・・・比較部、
１６・・・障害報告部、
１７・・・送信再試行部、
１０１ ・・受信回路、
１０２ ・・データバッファ、
１０３ ・・送信回路、
１０４ ・・制御部、
１１１ ・・送信障害検出回路、
１１２ ・・受信回路である。The figure is a block diagram of a data transmission device according to an embodiment of the present invention. In the figure, ■...data transmission device, 11...transmission section, 12...transmission failure detection section, 13...counter, 14...storage section, 15...comparison section, 16... Failure reporting unit, 17... Transmission retry unit, 101... Receiving circuit, 102... Data buffer, 103... Transmitting circuit, 104... Control unit, 111... Transmission failure detection circuit, 112... Receiving circuit It is.
Claims (1)
からのデータを共通伝送路等に送出するデータ伝送装置
において、 前記上位装置からのデータを前記共通伝送路等に送出す
る送信手段と、 この送信手段による送信が失敗したことを検出する送信
失敗検出手段と、 この送信失敗検出手段により検出された送信失敗の回数
をカウントするカウント手段と、 前記上位装置もしくは前記共通伝送路等に接続された他
装置からの指示により送信再試行回数が書き込まれ送信
失敗検出時に読み出される読み書き可能な記憶手段と、 前記カウント手段のカウント値と前記記憶手段から読み
出された前記送信再試行回数とを比較する比較手段と、 この比較手段での比較により前記カウント値が前記送信
再試行回数を越えているときに前記上位装置にその旨を
報告する障害報告手段と、 前記比較手段での比較により前記カウント値が前記送信
再試行回数を越えていないときに再送信を起動する送信
再試行手段と、 を有することを特徴とするデータ伝送装置。[Scope of claims] In a data transmission device that is connected to a host device such as a data processing device and sends data from the host device to a common transmission path, etc., the data transmission device transmits data from the host device to the common transmission path, etc. a transmission means for detecting a transmission failure; a transmission failure detection means for detecting a failure in transmission by the transmission means; a counting means for counting the number of transmission failures detected by the transmission failure detection means; and the host device or the common transmission. a readable/writable storage means in which the number of transmission retries is written in accordance with an instruction from another device connected to a transmission line or the like and read out when a transmission failure is detected; and a count value of the counting means and the transmission retry count read out from the storage means. a comparison means for comparing the number of retries with the number of retries; a failure reporting means for reporting the fact to the host device when the count value exceeds the number of transmission retries as a result of the comparison by the comparison means; A data transmission device comprising: transmission retry means for starting retransmission when the count value does not exceed the number of transmission retries based on a comparison.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61001197A JPS62159539A (en) | 1986-01-07 | 1986-01-07 | Data transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61001197A JPS62159539A (en) | 1986-01-07 | 1986-01-07 | Data transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62159539A true JPS62159539A (en) | 1987-07-15 |
Family
ID=11494728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61001197A Pending JPS62159539A (en) | 1986-01-07 | 1986-01-07 | Data transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62159539A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01125035A (en) * | 1987-11-10 | 1989-05-17 | Canon Inc | Image information receiving device |
| JPH06112922A (en) * | 1992-09-25 | 1994-04-22 | N T T Idou Tsuushinmou Kk | Data transmission system using automatic re-transmission request |
| US5586118A (en) * | 1993-02-15 | 1996-12-17 | Honda Giken Kogyo Kabushiki Kaisha | Data transmission method and system therefor |
| US7936664B2 (en) | 1991-03-26 | 2011-05-03 | Nokia Corporation | Multi-carrier radio link protocol supervision in a radio communication system |
| US8817637B2 (en) | 2002-10-31 | 2014-08-26 | Nokia Corporation | Apparatus, and associated method, for requesting data retransmission in a packet radio communication system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917757A (en) * | 1982-07-21 | 1984-01-30 | Nec Corp | Controlling system of data transmission |
-
1986
- 1986-01-07 JP JP61001197A patent/JPS62159539A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917757A (en) * | 1982-07-21 | 1984-01-30 | Nec Corp | Controlling system of data transmission |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01125035A (en) * | 1987-11-10 | 1989-05-17 | Canon Inc | Image information receiving device |
| US7936664B2 (en) | 1991-03-26 | 2011-05-03 | Nokia Corporation | Multi-carrier radio link protocol supervision in a radio communication system |
| JPH06112922A (en) * | 1992-09-25 | 1994-04-22 | N T T Idou Tsuushinmou Kk | Data transmission system using automatic re-transmission request |
| US5586118A (en) * | 1993-02-15 | 1996-12-17 | Honda Giken Kogyo Kabushiki Kaisha | Data transmission method and system therefor |
| US5659702A (en) * | 1993-02-15 | 1997-08-19 | Honda Giken Kogyo Kabushiki Kaisha | Data transmission method and system therefor |
| US5696904A (en) * | 1993-02-15 | 1997-12-09 | Honda Giken Kogyo Kabushiki Kaisha | Data transmission method and system therefor |
| US5764919A (en) * | 1993-02-15 | 1998-06-09 | Honda Giken Kogyo Kabushiki Kaisha | Data transmission method and system therefor |
| US8817637B2 (en) | 2002-10-31 | 2014-08-26 | Nokia Corporation | Apparatus, and associated method, for requesting data retransmission in a packet radio communication system |
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